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基于直方图的快速Mumford-Shah模型MRI分割

DOI: 10.11834/jig.200507161

Keywords: M-S模型,C-V模型,直方图,区域信息,MRI分割

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Abstract:

Mumford-Shah(MS)模型因为其具有良好的图像分割能力,目前已被广泛应用于图像分割、目标跟踪等领域。但是由于其迭代过程需要对所有图像数据反复进行计算,因而其时间效率很低,难以实时应用。针对这个缺点,根据医学核磁共振图像(MRI)的特点,对M-S模型进行了改进,提出了一种基于直方图的快速求解方法,其求解时,首先构造符号表,以区分曲线内外区域;然后利用直方图法来进行目标的快速粗分割,再通过遍历优化边界,来获得较精确的分割。对MR图像进行的分割实验表明,其分割效果更好,同时,时间效率也有大幅提高,这就方便了实时应用。

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